Serendipity 2.4.0 Stored Cross-Site Scripting via Admin Entry Creation

Advisories

severity: medium
date: December 17, 2025
Affecting: Serendipity 2.4.0
CVE: CVE-2023-53932
CWE: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS: 5.1
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
References: ExploitDB-51373
Official Product Homepage
Credit: Mirabbas Ağalarov
Description: Serendipity 2.4.0 contains a stored cross-site scripting vulnerability that allows authenticated users to inject malicious scripts through blog entry creation. Attackers can craft entries with JavaScript payloads that will execute when other users view the compromised blog post.